diff --git a/public/css/vc.css b/public/css/vc.css
index 0b25c66..2b8058c 100644
--- a/public/css/vc.css
+++ b/public/css/vc.css
@@ -146,22 +146,51 @@
   z-index: 30;
 }
 
-.docGroup .docGroup > .operators {
+.docGroup
+.docGroup > .operators {
   z-index: 31;
 }
 
-.docGroup .docGroup .docGroup > .operators {
+.docGroup
+.docGroup
+.docGroup > .operators {
   z-index: 32;
 }
 
-.docGroup .docGroup .docGroup .docGroup > .operators {
+.docGroup
+.docGroup
+.docGroup
+.docGroup > .operators {
   z-index: 33;
 }
 
-.docGroup .docGroup .docGroup .docGroup .docGroup > .operators {
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup > .operators {
   z-index: 34;
 }
 
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup > .operators {
+  z-index: 35;
+}
+
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup
+.docGroup > .operators {
+  z-index: 36;
+}
+
 .vc .doc > span.key,
 .vc .doc > span.value {
   font-weight: bold;